Automobile tire valve for multiple air tubes



Patented Nov. 22, l2?,

.ALBERT EHRLER, F NEW YORK, N. Y., ASSIGNOB OF FORTY-NINEONE-HUNDREDTHS. PART "JTO- ERMINIO GUERCI, OF NEW YORK, N. Y.

UTOMOJBILE TIRE VALVE FOR MUL/TIPLE AIR TUBES.

Application led March 28, 1925.

rlillois invention relates to an automobile tire valve for multiple airtubes. An object of the invention is to provide a plurality ot tubeswithin an automobile shoe so that it' one is punctured the other can bereadily put into use.

Another object concerns the provision ot' means whereby the standardtype wheel or rim and shoe can be used in connection with i@ myinvention.

'lihe invention is illustrated in the drawings, of which- Figure 1 is avertical section through the valve and the tubes;

Fig. 2 is a similar section showing the tubes removed from the shoe anddeflated lig. 3- is a section through the valve stem; an

Fig. 4 is a partial section of a modified 2o form of valve stem.

The forms of the invention shown in the drawings are preferred forms,although it is understood that other modifications in the constructionand arrangement ot the parts may be adopted without departing from thespirit oi the invention as set forth in the appended claim.

In general, the invention comprises a valve stem in which a plurality ofair passages are disposed. This stem is provided at its bottom with anenlarged base having separate nipples for each air passage, a separateinner tube being connected to each nipple. Preferably there are twonipples adapted to be connected to two tubes, although more may beprovided. in the manufacture ot the device, aninner tube patch isconnected to each nipple and suitably fastened thereto, and then aninner tube is vulcanized or otherwise connected to the edges of thepatch. rlhis permits the ynipple and the clamping nuts and similarelements to be connected to the patch.

45, rlihe valve stem is provided with necks having suitable valvemechanisms in each, the mechanisms being standard, so that one or theother of the inner tubes can be inflated or deflated, as desired.

lin the preferred form shown 1n the drawings, l provide a valve stemhaving a hase 11, a rim sleeve 12 and a contacting disk 13 against whichthe upper end 14 of and in the character of the materials used SerialNo. 19,142.

the stem is clamped by means of a clamping collar 15. The lower end ofthe stem por. tion 11i and the upper end of the stem 10 may be madeirregular, so that the rubber disk 13 will be gripped in. such manner byreason of the irregularity that it will not tend to rotate and possiblychoke oil the air` passages. The' upper end of the stem is provided withtwo separate necks 16 and 17 with valve mechanisms of suitable standardtype and connected to passages 18 and 19 leading to nipples 20 and 21 inthe base 11. Clamping nuts 22 and 23 are threaded on to each nipple andare provided with a hollow plate 24 of any suitable desi to hold themthereon. These nuts are a apted to clamp patches such as 25 and 27against the base, and to the edges of these patches inner tubes 26 and28, respectively, are adapted to be cemented or vulcanized. lt isobservable that itis possible to fasten the patches 25 and 27 to thenipples by means of nuts and locking plates, and then tasten the tubesthereto, or by any other process, such as cutting a small apertureopposite to the nipple hole in the tube, spreading out said aperture sothat the clamping nut may be introduced through the aperture and xed onto the nipple. The aperture is to be piatlhed after the clamping nut hasbeen xe I in the form shown in Fig. 1, the tube 28 is inflated and thetube 26 is deflated; whereas, when the tube 28 is punctured, it ismerely necessary to blow up tube 26 and deflate tube 28.

The modified form of the invention shown in Fig. 4 is merely a change inthe shape of the valve-stem base to provide for a wider rim.

In the operation of the device, it is observable that the valve is ofstandard type, although provided with more than one air passage.Sometimes more than two nipples may be provided on the base, if desired,so that more than two tubes can be used.

In Fig. 1 it willnbe observed that the tubes along the adjacent surfacesare preferably held together by suitable means such as small areas ofcement or adhesive 29, so that as the one tube is iniiated its movementwill properly and directlyinluence the movement of the other.

nipples, nuts on the nipples, an outer section havlng two longitudinalpassages and provided with two diverging tubular necks, a valve in eachneck, and means for detachably securing the sections together inalinement.

ALBERT EHRLER.

